228120835 has 8 divisors (see below), whose sum is σ = 273975120. Its totient is φ = 182343264.

The previous prime is 228120833. The next prime is 228120853. The reversal of 228120835 is 538021822.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 228120835 - 2¹ = 228120833 is a prime.

It is a super-2 number, since 2×228120835² = 104078230722194450, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 228120797 and 228120806.

It is not an unprimeable number, because it can be changed into a prime (228120833) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12417 + ... + 24706.

It is an arithmetic number, because the mean of its divisors is an integer number (34246890).

Almost surely, 2^228120835 is an apocalyptic number.

228120835 is a deficient number, since it is larger than the sum of its proper divisors (45854285).

228120835 is a wasteful number, since it uses less digits than its factorization.

228120835 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38357.

The product of its (nonzero) digits is 7680, while the sum is 31.

The square root of 228120835 is about 15103.6695872228. The cubic root of 228120835 is about 611.0193785970.

The spelling of 228120835 in words is "two hundred twenty-eight million, one hundred twenty thousand, eight hundred thirty-five".